CN100520272C - Method for altering circulation sectional area in pipe of single-pipe air cooler - Google Patents
Method for altering circulation sectional area in pipe of single-pipe air cooler Download PDFInfo
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- CN100520272C CN100520272C CNB2006101178401A CN200610117840A CN100520272C CN 100520272 C CN100520272 C CN 100520272C CN B2006101178401 A CNB2006101178401 A CN B2006101178401A CN 200610117840 A CN200610117840 A CN 200610117840A CN 100520272 C CN100520272 C CN 100520272C
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- air cooler
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Abstract
The invention relates to a method for changing the internal flow sectional area of tube in a single tube pass air cooler, which is characterized in that after a finned tube is manufactured, a tube fitting is inserted in the base tube of the finned tube from the end of the fluid flow direction, wherein, the shape of the pipe fitting can be column, conical or other shapes, the length can be determined depending on the factors of structure, steam flow and temperature of the air cooler; the tube fitting is used for decreasing the flow area of liquid in the cooling stage and increasing flow speed; both ends of the pipe fitting are sealed, the diameter of the pipe fitting on the maximum cross section or the maximum size on the cross section is less than the inner diameter of the base tube, a plurality of spacing columns are fixedly connected between the pipe fitting and the base tube for fixing the pipe fitting and keeping certain flow area between the pipe fitting and the base tube. For the media in single tube pass air cooler under the occasion of first condensation and then cooling, the invention has the advantages of enhanced flow speed of fluid in cooling stage, improved heat transfer coefficient, strengthened heat transfer efficiency, reduced heat transfer area, saved material, reduced volume of air cooler, decreased air flow, reduced fan power for driving air flow and saved energy effect.
Description
Technical field
The present invention relates to single tube journey air cooler, the single tube journey air cooler that cools off after the condensation of medium elder generation in being specifically related to manage actual internal area in cooling stage is managed by change improves the method for heat transfer efficiency.
Background technology
Air cooler is a kind of of heat exchanger, and it is to utilize air as cooling fluid, and the fluid of another higher temperature is cooled off or the heat exchanger of condensation.The single tube journey is meant that tube fluid is disposable and flows out air cooler after a side pipe case flows to the opposite side bobbin carriage.Tube fluid generally is condensed earlier, and then is cooled, and condensation is meant gas cold for liquid, and phase transformation has taken place fluid, and cooling is meant that then the liquid cools that temperature is higher is the lower liquid of temperature.Because fluid density is more much bigger than gas, if the actual internal area in the pipe is constant, the flow velocity of liquid can be little more a lot of than gas at cooling stage, had a strong impact on the be cooled heat transfer efficiency in stage of liquid.Therefore, when requirement is condensed earlier and cools off then for tube fluid, often need to change actual internal area in the pipe, to improve heat transfer efficiency.Changing the interior actual internal area of pipe for multitube journey air cooler is easier to realize, it arranges some pipes can for first journey or former journey of condensation phase more, arrange some pipes less for a back journey or a few journey of cooling stage, like this, can make the circulation area of the circulation area of cooling stage less than condensation phase.The method of actual internal area in this change pipe can improve the flow velocity of liquid, strengthens and conducts heat, thereby save heat transfer area, saves material, also can reduce the power of blower fan, reaches purpose of energy saving.Yet the process fluid that has does not allow bending and flows, and that is to say that not allowing the multitube journey flows, and only allows the single tube journey to flow, otherwise can cause consequences such as fluid sex change or obstruction.Even the fluid that has allows the multitube journey to flow, but the structure that the multitube journey flows is obviously than single tube journey complexity.At present, when adopting single tube journey air cooler that process fluid is carried out condensation and cooling on the industry, all do not adopt the method that becomes actual internal area in the pipe, like this, the heat transfer coefficient of cooling stage is very little, heat transfer efficiency is very low, need remedy by increasing heat transfer area, causes the increase of waste, the air cooler volume of material, also can increase the power consumption of blower fan.Therefore, the method for actual internal area is significant in the proposition single tube journey air cooler change pipe.
Summary of the invention
The single tube journey air cooler of cooling be condensed then earlier in the problem and shortage that cooling stage exists for overcoming the tube fluid requirement, the invention discloses the method for single tube journey air cooler actual internal area in cooling stage changes pipe.This method can reach the flow velocity that improves liquid at cooling stage, strengthens to conduct heat, thus the purpose of minimizing heat transfer area and energy savings.
The method of this altering circulation sectional area in pipe of single-pipe air cooler, be characterized in: it is used for the occasion cooled off after the condensation of medium elder generation in the single tube journey air cooling organ pipe, make the condensed liquid of medium reduce circulation area at cooling stage, increase flow velocity, improve heat exchange efficiency, it is characterized in that: after the finned tube manufacturing is finished, from the terminal pipe fitting that inserts of the fluid flow direction of finned tube parent tube, this pipe fitting sealed at both ends, the length of pipe fitting is less than the length of parent tube pipe, full-size is less than the parent tube internal diameter on the maximum cross section diameter of pipe fitting or the cross section, be connected with spacing column between pipe fitting and the parent tube, be used for fixing pipe fitting and keep certain circulation area between pipe fitting and the parent tube.
Pipe shape can be cylinder, cone or other shapes, its length is according to the decision of factors such as the structure of air cooler, steam flow, temperature, be used for cooling off occasion after the condensation of medium elder generation in the single tube journey air cooling organ pipe, liquid reduces circulation area at cooling stage, increases flow velocity.
The method of altering circulation sectional area in pipe of single-pipe air cooler, the heat exchange occasion that requirement is condensed earlier and cools off then for tube fluid, can improve the flow velocity of fluid cooling stage, improve heat transfer coefficient, strengthen heat transfer efficiency, thereby minimizing heat transfer area, save material, reduce the volume of air cooler, and make the flow of air reduce, make that driving the mobile power of fan of air reduces, and plays energy-saving effect.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in detail.
Fig. 1 is a single tube journey air cooler structural representation;
Fig. 2 changes schematic diagram for flow area in the pipe.
1. pipe fitting; 2. spacing column; 3. finned tube; 4. tube sheet; 5. bobbin carriage.
Arrow among the figure is represented the flow direction of fluid.
The specific embodiment
Single tube journey air cooler includes bobbin carriage 5, tube sheet 4 and finned tube 3, after finned tube 3 manufacturings of air cooler are finished, from the terminal pipe fitting 1 that inserts of the fluid flow direction of finned tube parent tube, present embodiment is selected one section pipe, pipe fitting sealed at both ends, and the length of pipe fitting is less than the length of parent tube pipe, the maximum cross section diameter of pipe fitting can design definite less than the parent tube internal diameter according to the technological parameter of air cooler heat exchange as for concrete size.Outer surface of pipe fittings has spacing column 2, is used for fixing pipe fitting and keeps certain circulation area between pipe fitting and the parent tube, by the spot welding to the part spacing column, makes between pipe fitting and the parent tube to be fixed together.
The present invention is simple in structure, processing and fabricating is convenient, for the tube fluid heat exchange occasion of cooling then that requires to be condensed earlier, can improve the flow velocity of fluid cooling stage, improve heat transfer coefficient, strengthen heat transfer efficiency, thereby reduce heat transfer area, save material, reduce the volume of air cooler, and make the flow of air reduce, make that driving the mobile power of fan of air reduces, and plays energy-saving effect.Can be widely used in the various air coolers.
Claims (2)
1. the method for an altering circulation sectional area in pipe of single-pipe air cooler, it is used for the occasion cooled off after the condensation of medium elder generation in the single tube journey air cooling organ pipe, make the condensed liquid of medium reduce circulation area at cooling stage, increase flow velocity, improve heat exchange efficiency, it is characterized in that: after the finned tube manufacturing is finished, from the terminal pipe fitting that inserts of the fluid flow direction of finned tube parent tube, this pipe fitting sealed at both ends, the length of pipe fitting is less than the length of parent tube pipe, full-size is less than the parent tube internal diameter on the maximum cross section diameter of pipe fitting or the cross section, be connected with spacing column between pipe fitting and the parent tube, be used for fixing pipe fitting and keep certain circulation area between pipe fitting and the parent tube.
2. the method for altering circulation sectional area in pipe of single-pipe air cooler according to claim 1, it is characterized in that: described pipe shape is cylinder body shape or cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101178401A CN100520272C (en) | 2006-11-01 | 2006-11-01 | Method for altering circulation sectional area in pipe of single-pipe air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101178401A CN100520272C (en) | 2006-11-01 | 2006-11-01 | Method for altering circulation sectional area in pipe of single-pipe air cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101173844A CN101173844A (en) | 2008-05-07 |
| CN100520272C true CN100520272C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101178401A Expired - Fee Related CN100520272C (en) | 2006-11-01 | 2006-11-01 | Method for altering circulation sectional area in pipe of single-pipe air cooler |
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| CN (1) | CN100520272C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135930A (en) * | 2015-09-08 | 2015-12-09 | 上海伯涵热能科技有限公司 | Part for increasing convective heat transfer coefficient of condensate, refrigerating system and cooling and heating air conditioner |
| CN105466272A (en) * | 2015-12-15 | 2016-04-06 | 安徽晋煤中能化工股份有限公司 | Method for adjusting area of cooler |
| JP6901964B2 (en) * | 2017-12-26 | 2021-07-14 | 住友重機械工業株式会社 | Manufacturing method of pulse tube refrigerator and pulse tube refrigerator |
| CN110425898B (en) * | 2019-08-30 | 2024-09-13 | 湖北襄化机械设备有限公司 | Yellow phosphorus tail gas heat exchange tower |
| CN111076572B (en) * | 2019-12-31 | 2020-11-24 | 苏州鱼得水电气科技有限公司 | Spiral tube heat exchanger for preventing medium polymerization for chemical vacuum system |
| CN112254194B (en) * | 2020-10-13 | 2021-12-03 | 嘉兴尚坤科技有限公司 | Floor warms up with hot-water heating heat supply formula |
| CN112254201B (en) * | 2020-10-13 | 2021-12-03 | 嘉兴尚坤科技有限公司 | Steam heating heat supply type ground heating floor |
| CN117824149B (en) * | 2023-12-25 | 2024-06-07 | 山东三土能源股份有限公司 | Air source heat pump water heat exchanger |
-
2006
- 2006-11-01 CN CNB2006101178401A patent/CN100520272C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 全自动翅片管单管传热性能试验系统的研制. 欧阳新萍，张生，周文涛，丁一鸣.动力工程，第21卷第1期. 2001 |
| 全自动翅片管单管传热性能试验系统的研制. 欧阳新萍，张生，周文涛，丁一鸣.动力工程，第21卷第1期. 2001 * |
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| Publication number | Publication date |
|---|---|
| CN101173844A (en) | 2008-05-07 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin Air Conditioning Co., Ltd. Assignor: University of Shanghai for Science and Technology Contract fulfillment period: 2009.9.17 to 2014.9.17 contract change Contract record no.: 2009990001041 Denomination of invention: Method for altering circulation sectional area in pipe of single-pipe air cooler Granted publication date: 20090729 License type: Exclusive license Record date: 2009.9.21 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.17 TO 2014.9.17; CHANGE OF CONTRACT Name of requester: SHANGHAI TIANBO ENERGY EQUIPMENT CO., LTD. Effective date: 20090921 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20121101 |